Migrate dynamic_keymap.layer_count < 4 where requried (#22091)

Co-authored-by: Nick Brassel <nick@tzarc.org>

keyboards/evyd13/wasdat_code/config.h

@@ -58,5 +58,3 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 //#define NO_ACTION_LAYER
 //#define NO_ACTION_TAPPING
 //#define NO_ACTION_ONESHOT
-
-#define DYNAMIC_KEYMAP_LAYER_COUNT 3

keyboards/evyd13/wasdat_code/info.json

@@ -13,6 +13,9 @@
         "levels": 5,
         "breathing": true
     },
+    "dynamic_keymap": {
+        "layer_count": 3
+    },
     "qmk_lufa_bootloader": {
         "esc_input": "F0",
         "esc_output": "E6",